(by 1975)
lithograph
(1925)
woodcut
(1985)
hardground-etching
(1977)
screenprint
(c.1952-1957)
linocut
(c.1970)
sugarlift aquatint
(1996)
(1970s)
(c.1955)
(1970)
(1990)
(2002)
digital print
(1965)
(24 May 1974)
(1969)